Tourism and U.S. global expansion not only occurred simultaneously, but also shared a common material infrastructure. The commercial airline industry, so vital to the growth of overseas travel, played a key role in fostering international military integration… In the postwar period, private airline companies proved crucial to the development of overseas military bases and the securing of foreign air-transit rights, and U.S. officials encouraged airlines to locate their operations in areas they considered vital to ensuring U.S. security. Developing the means to move Americans around the world easily was both a commercial endeavor and a military necessity.
—  Christina Klein, Cold War Orientalism